The Bible's answer to
this question is a resounding "yes." It says, "In the
beginning was the Word, and the Word was with God, and the Word was
God. He was with God in the beginning. Through him all
things were made; without him nothing was made that has been made."
(John 1:1-3) It is clear from later in this passage that the
"Word" is referring to Jesus.
But why would the
eternal God enter our world as a human being? This passage
gives the reason:
children have flesh and blood, he too shared in their humanity so
that by his death he might destroy him who holds the power of
death--that is, the devil--and free those who all their lives were
held in slavery by their fear of death. For surely it is not
angels he helps, but Abraham's descendants. For this reason he
had to be made like his brothers in every way, in order that he
might become a merciful and faithful high priest in service to God,
and that he might make atonement for the sins of the people.
Because he himself suffered when he was tempted, he is able to help
those who are being tempted. (Hebrews 2:14-18)